ðə mˈʌtʃ lˈɑːɹdʒɚ səpɹˈɛʃən dɪtˈɛktɚ hɐz mˈʌtʃ mˈoːɹ stˈɑːpɪŋ pˈaʊɚ ðɐn ðə mˈeɪn dɪtˈɛktɚ, ænd ɪɾ ɪz hˈaɪli ʌnlˈaɪkli ðætðə ɡˈæmɚ ɹˈeɪ wɪl skˈæɾɚ sˌoʊ ðˌɐɾɪt ɛskˈeɪps bˈoʊθ dɪvˈaɪsᵻz.
The much larger suppression detector has much more stopping power than the main detector, and it is highly unlikely that the gamma ray will scatter so that it escapes both devices.