[Intl_DxMedPhys] [EXTERNAL] Re: Siemens X.Cite

[Gary]

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Dose measurements would show it if the collimation was that far off.

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Thanks,
Gary Isenhower


On Tue, 11 Feb 2025 19:23:34 +0000, Lee Kiessel via Intl_dxmedphys_wd_osu_list <intl_dxmedphys_wd_osu_list at lists.osu.edu> wrote:

>Our X.cite beam widths are much larger than the nominal collimation,
>but within Siemens specifications.  The owner manuals usually have two
>specifications, a FWHM and an overexposed film measurement and they
>include collimations with the flying focal spot (z-sharp).  61 mm beam
>width would be far outside of tolerances.  Below is from our X.cite
>manual.
>
>[cid:image002.png at 01DB7C87.58D95970]
>
>From: Intl_dxmedphys_wd_osu_list
><intl_dxmedphys_wd_osu_list-bounces at lists.osu.edu> On Behalf Of Goetz,
>Danielle via Intl_dxmedphys_wd_osu_list Sent: Tuesday, February 11,
>2025 12:30 PM To: intl_dxmedphys_wd_osu_list at lists.osu.edu Subject:
>[Intl_DxMedPhys] [EXTERNAL] Re: Siemens X.Cite
>
>Good afternoon. Is there a trick that anyone has found when testing
>beam width on the Siemens X. Cite CT scanners? These systems are not
>as user friendly as others and you are limited to factor collimation
>settings. The collimation 64x. 6 that CYBERSECURITY WARNING: DO NOT
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>Good afternoon.
>
>Is there a trick that anyone has found when testing beam width on the
>Siemens X.Cite CT scanners?
>
>These systems are not as user friendly as others and you are limited
>to factor collimation settings.  The collimation 64x.6 that I tested
>should have given me approx. 38.4mm and I measured 61mm.  I know I
>need to pick a protocol without z-sharp, but has anyone else come
>across this and what did you find/ use for testing?
>
>
>Thanks in advance.
>
>DG
>
>Danielle Goetz, MS
>Medical Physicist
>Sanford Health Bismarck
>Direct: (701) 323-8722
>Mobile: (701) 527-2835
>Route: #20739
>Danielle.M.Goetz at sanfordhealth.org<mailto:Danielle.M.Goetz at sanfordhealth.org>
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