Nothing is impossible. If someone what to
challenge you, just ask him to measure the radiation directly. And I think
the operator must take the radiation collector in his hand. And you will
send the collector to relevant department to qualify whether your shield are ok
or not ok. But basically, the leakage is very difficult to be
measured. You can measure the radiation accumulation by collector.
So that's insurance.
Best regards,
Andy Duan (Shi
Hao)
------------------------------------------------------------------------
New
Technologies Department
Beijing Siemens Cerberus Electronics
Limited
2/F, RuiBao Building,
No.18,XinXi Road, ShangDi Information
Industry Base,HaiDian District, Beijing, 100085 China
Tel : +86 10
62962255 Ext. 602 (Office) or 126 (Lab)
Fax : +86 10 62987387
Internet :
http://www.sbt.siemens.com
Intranet :
http://intranet.bsce.sbt.siemens.com.cn
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Hi,Mr,Duan
Thank you for your kindly comments,
You are right, our machines have got exemption of radiation
monitoring from EBP according to GBZ117-2006, such as 5DX, Dage and phoenix's
machines, because these machine not only have chain system ,but also have
quite of thickness lead shield around . whilst it has lowest current
(100uA)
so ,all of us may think it is so
safety, who can ensure so-called "in case" ??? so ,this is
difficulty !!!
Hi Mr. Deng,
I've
ever operate with X-ray machine. And from the basic principle of the
machine, there are 2 kinds of X-ray generation way:
1. By isotope
radiator
2.
By a generation tube (like the lamp)
From the reqirement of China Environment
Department, you should prepare the radiator management procedure for your
regular operation. And also, you should arrange some emergency solution
for your machine. That means, maybe sometimes you have some urgent case,
such as radiator isolation case broken, there must be some hazardous element
leakage, so what your emergency should define is how can you deal with this
urgent case. In all, one procedure for regular operation, another is for
urgent case. That's the reason for why you need to do the
procedure.
From my point
of view, there is no need to prevent the radiator leakage for tube type, coz the
basic principle of X-ray generation is stimulated by high voltage.
Actually, the element inside is harmless. So you need only to
prevent the leakage of isotope radiator. For example, you can lock the
maintenace area of your machine, and keep the key in some special guy. And
to prevent the emergency, you need to buy some protection/exposure suit, and a
lead box which the wall must be thick enough to prevent X-ray leaking
out.
Best
regards,
Andy Duan (Shi
Hao)
------------------------------------------------------------------------
New
Technologies Department
Beijing Siemens Cerberus Electronics
Limited
2/F, RuiBao Building,
No.18,XinXi Road, ShangDi Information
Industry Base,HaiDian District, Beijing, 100085 China
Tel : +86 10
62962255 Ext. 602 (Office) or 126 (Lab)
Fax : +86 10 62987387
Internet :
http://www.sbt.siemens.com
Intranet : http://intranet.bsce.sbt.siemens.com.cn
E-mail : [log in to unmask]
CAUTION: This message may
contain privileged and confidential information intended only for the use of the
addressee named above. If you are not the intended recipient of this message you
are hereby notified that any use, distribution or reproduction of this message
is prohibited. If you have received this message in error please notify the
sender of this message immediately. Due to safety reasons we can not receive
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From: TGAsia [mailto:[log in to unmask]] On
Behalf Of FP Deng
Sent: Monday, November 05, 2007 3:02
PM
To: [log in to unmask]
Subject: [TGA] Regarding X-ray
radiation prevention
Hi,All
Currently, X-ray application is comprehensively used in the field of
Electronic industry, we usually are carelessness in prevention of
Radiation of x-ray ,although most of x-ray device right now can get an exemption
of radiation level from local EPB or CDC. due to it has so-called chain system
for any emergency.
So, We normally test it with radiation meter every shift. but some
customer do not think it is good enough for prevention and it is just a one of
action of prevention, not for paroxysmal radiation incident.....
So, can you share with me what
your kindly suggestions or your best practice on this.Thanks a lot.
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